Alabama SWPPP Compliance
Quick Facts for Alabama
- Authority: Alabama Dept. of Environmental Management (ADEM) (AL)
- Permit: NPDES General Permit ALR100000
- Inspection Schedule: Monthly + within 24h of 0.75" rain
- Rain Trigger: 0.75 inches
Regulation Overview
Permitting Authority
Official Permit
Inspection Frequency
Rain Event Trigger
State vs. Federal (EPA)Varies
Higher Rain Threshold
Inspections are triggered at 0.75 inches of rain, unlike the standard 0.50 inches found in most EPA-aligned states.
Inspection Requirements for Alabama
Construction projects that disturb one or more acres—or smaller sites that are part of a larger common plan—commonly require stormwater permit coverage in Alabama. Eligibility, exemptions, local approvals, and project-specific conditions vary, so confirm coverage under the NPDES General Permit ALR100000 before construction begins.
Operational Insight
This schedule combines recurring and event-driven duties. Record rainfall or discharge events independently from the weekly calendar and document why each event did or did not trigger an inspection.
Specific State Nuance
Alabama uses a higher rain trigger (0.75 inches) than the federal standard. Daily observations of the site entrance are also required.
Common BMPs Checked in Alabama
- Silt Fences & Perimeters
- Construction Entrances
- Concrete Washout Areas
- Inlet Protection
- Stockpile Management
- Dust Control
Continue your field review
Check common controls in the BMP field guide, then compare them with your approved SWPPP.
Regulatory Filing
Official Resources
Why Go Digital?
Handwritten logs are hard to read and easy to lose. Digital reports provide a timestamped, geo-tagged audit trail that protects your business.